*{
    /* 初始化 */
    margin: 0;
    padding: 0;
}

.img{
  position:absolute;
  z-index: -1;
  width: 1535px;
  height: 790px;
}
.login-box{
  width: 100%;
  text-align: center;
}

.input-box{
  width: 420px;
  height: 200px;
  line-height: 60px;
  margin-left: 580px;
  padding-top: 200px;
}

.pass{
  height: 40px;
  padding-left: 30px;
}
button{
  width: 420px;
  height: 40px !important;
  margin-top: 20px;
}
h2{
  color: #fff;
}